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Kobresia myosuroides Herbaceous Alliance | Western Ecology Working Group of...
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Name: Kobresia myosuroides Herbaceous Alliance Reference: Western Ecology Working Group of... Description: This alliance may be found in many subalpine, alpine, and arctic regions of the Holarctic, commonly encountered on wind-swept ridges below exposed ridgetops in the subalpine and alpine in the Rocky Mountains, Sierra Nevada, and Cascades. This alliance also includes uncommon communities that are found in rich fens in Colorado and calcareous fens in California. Soils are moderately deep, well-drained, with high organic matter content. Soil texture is often silt loam to sandy loam with coarse fragments. Fen soils are saturated due to a high water table. Vegetation included in this alliance is characterized by moderately dense to dense herbaceous canopy that is dominated by the cespitose perennial graminoid Kobresia myosuroides. Several forbs are typically codominant; they include Geum rossii, Trifolium dasyphyllum, Trifolium nanum, Polygonum viviparum, and Thalictrum alpinum. Other graminoids can include Carex rupestris var. drummondiana, Deschampsia caespitosa, Poa glauca ssp. rupicola (= Poa rupicola), and Carex elynoides. Other local codominants include Salix brachycarpa, Trichophorum pumilum (= Scirpus rollandii), Draba lonchocarpa var. lonchocarpa (= Draba nivalis var. elongata) in the California fen; Carex scirpoidea, Salix nivalis, Oxytropis campestris, Minuartia obtusiloba (= Arenaria obtusiloba), and Solidago multiradiata in the North Cascades; and Thalictrum alpinum and Juncus arcticus in the Colorado fens. Cryptogam cover is important is some stands.  Accession Code: VB.CC.19373.KOBRESIAMYOSURO Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Kobresia myosuroides Herbaceous Alliance   Translated: Pacific Bog Sedge Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.125429 NatureServe Explorer   Code: A.1326